The originally published version of this article included an error in figure 5 that misrepresented the statistical comparison between data presented in parts a and b. The figure and its caption have been corrected in the article itself, and the corrected version is shown below.
(See following page) Spirometric progression of smokers with preserved spirometry (COPD Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage 0) at 5-year follow-up visit (V2) stratified by lung volumes. a) Functional residual capacity (FRC)/total lung capacity (TLC), b) FRC and c) TLC. Bar plots show the distribution of COPD GOLD stage at 5-year follow-up visit with strata of baseline lung volumes. The lung volumes were adjusted for age, sex, height and weight. Horizontal bars indicate statistically significant comparisons of the percentages between the high-tertile group in each lung volume stratification with the low-tertile group within that stratification using one-way ANOVA with the Tukey–Kramer post hoc test. The symbols on the bars indicate statistically significant comparisons of the likelihood of progressing to the corresponding GOLD stages between the high tertiles of different lung volume stratifications using mixed-effect logistic modelling with adjustment for age, sex, height, weight, smoking status (current versus former) and smoking burden (pack-years). GOLD stage 4 was omitted at 5-year follow-up because no participants developed GOLD stage 4. PRISm: preserved ratio and impaired spirometry. * and #: p<0.001 between panels a and c.
- Copyright ©ERS 2023
This version is distributed under the terms of the Creative Commons Attribution Non-Commercial Licence 4.0. For commercial reproduction rights and permissions contact permissions{at}ersnet.org
